WO2005099355A3 - Imaging device and image processing program - Google Patents

Imaging device and image processing program Download PDF

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Publication number
WO2005099355A3
WO2005099355A3 PCT/JP2005/007489 JP2005007489W WO2005099355A3 WO 2005099355 A3 WO2005099355 A3 WO 2005099355A3 JP 2005007489 W JP2005007489 W JP 2005007489W WO 2005099355 A3 WO2005099355 A3 WO 2005099355A3
Authority
WO
WIPO (PCT)
Prior art keywords
noise
video signal
transferred
unit
image buffer
Prior art date
Application number
PCT/JP2005/007489
Other languages
French (fr)
Japanese (ja)
Other versions
WO2005099355A2 (en
Inventor
Chenggang Wen
Original Assignee
Olympus Corp
Chenggang Wen
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Olympus Corp, Chenggang Wen filed Critical Olympus Corp
Priority to US11/578,468 priority Critical patent/US20070206885A1/en
Publication of WO2005099355A2 publication Critical patent/WO2005099355A2/en
Publication of WO2005099355A3 publication Critical patent/WO2005099355A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/72—Combination of two or more compensation controls
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/80—Camera processing pipelines; Components thereof
    • H04N23/84—Camera processing pipelines; Components thereof for processing colour signals
    • H04N23/843—Demosaicing, e.g. interpolating colour pixel values
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/60—Noise processing, e.g. detecting, correcting, reducing or removing noise

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Color Television Image Signal Generators (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
  • Studio Devices (AREA)

Abstract

A video signal acquired is transferred to a pre-processing unit (103) and subjected to sampling, gain amplification, and A/D conversion before being transferred to an image buffer (104). The video signal in the image buffer (104) is transferred to a noise estimation unit (106). According to the imaging condition, the video signal, and the reference noise model, the noise estimation unit (106) calculates a noise amount for each ISO sensitivity and each color signal. The noise amount calculated is transferred to a noise reduction unit (105). According to the noise amount estimated by the noise estimation unit (106), the noise reduction unit (105) subjects the video signal in the image buffer (104) to a noise reduction process and transfers the video signal after the noise reduction process to a signal processing unit (108).
PCT/JP2005/007489 2004-04-14 2005-04-13 Imaging device and image processing program WO2005099355A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/578,468 US20070206885A1 (en) 2004-04-14 2005-04-13 Imaging System And Image Processing Program

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004-119051 2004-04-14
JP2004119051A JP2005303802A (en) 2004-04-14 2004-04-14 Imaging apparatus and image processing program

Publications (2)

Publication Number Publication Date
WO2005099355A2 WO2005099355A2 (en) 2005-10-27
WO2005099355A3 true WO2005099355A3 (en) 2005-12-15

Family

ID=35150402

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2005/007489 WO2005099355A2 (en) 2004-04-14 2005-04-13 Imaging device and image processing program

Country Status (3)

Country Link
US (1) US20070206885A1 (en)
JP (1) JP2005303802A (en)
WO (1) WO2005099355A2 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4637812B2 (en) 2006-11-09 2011-02-23 オリンパス株式会社 Image signal processing apparatus, image signal processing program, and image signal processing method
JP4728265B2 (en) * 2007-02-20 2011-07-20 富士通セミコンダクター株式会社 Noise characteristic measuring apparatus and noise characteristic measuring method
JP4998009B2 (en) * 2007-02-26 2012-08-15 株式会社ニコン Image processing apparatus and imaging apparatus
WO2008111180A1 (en) 2007-03-13 2008-09-18 Olympus Corporation Image signal processing apparatus, image signal processing program, and image signal processing method
WO2008149904A1 (en) 2007-06-05 2008-12-11 Olympus Corporation Video signal processing apparatus and video signal processing program
JP5052319B2 (en) 2007-12-17 2012-10-17 オリンパス株式会社 Movie noise reduction processing apparatus, movie noise reduction processing program, movie noise reduction processing method
JP5197423B2 (en) 2009-02-18 2013-05-15 オリンパス株式会社 Image processing device
KR101618298B1 (en) 2009-10-23 2016-05-09 삼성전자주식회사 High ISO image generating apparatus and method
US8711250B2 (en) 2011-02-09 2014-04-29 Olympus Corporation Image signal processing apparatus and image signal processing method
US9819849B1 (en) * 2016-07-01 2017-11-14 Duelight Llc Systems and methods for capturing digital images
KR102149270B1 (en) * 2013-12-13 2020-08-28 한화테크윈 주식회사 Method and system for reducing noise by controlling lens iris
WO2016097758A1 (en) * 2014-12-19 2016-06-23 Apical Limited Sensor noise profile
JP6559011B2 (en) * 2015-08-20 2019-08-14 キヤノン株式会社 Image processing apparatus and image processing method
CN105681672B (en) * 2016-02-29 2018-12-04 广东欧珀移动通信有限公司 Control method, control device and electronic device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004072422A (en) * 2002-08-06 2004-03-04 Olympus Corp Photographing system and image processing program
JP2004088149A (en) * 2002-08-22 2004-03-18 Olympus Corp Imaging system and image processing program
JP2004096500A (en) * 2002-08-30 2004-03-25 Konica Minolta Holdings Inc Image pickup apparatus, image processing apparatus, and image recording apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7065255B2 (en) * 2002-05-06 2006-06-20 Eastman Kodak Company Method and apparatus for enhancing digital images utilizing non-image data

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004072422A (en) * 2002-08-06 2004-03-04 Olympus Corp Photographing system and image processing program
JP2004088149A (en) * 2002-08-22 2004-03-18 Olympus Corp Imaging system and image processing program
JP2004096500A (en) * 2002-08-30 2004-03-25 Konica Minolta Holdings Inc Image pickup apparatus, image processing apparatus, and image recording apparatus

Also Published As

Publication number Publication date
US20070206885A1 (en) 2007-09-06
JP2005303802A (en) 2005-10-27
WO2005099355A2 (en) 2005-10-27

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